Jonathan wants to buy a lid for his frying pan.
The diameter of the pan is 9 inches. What is the approximate circumference of a lid that will fit his frying pan? (Use 3.14 for .)

Question

Extrinix · Answer

Do you know the equation for the circumference of a circle?

myabell · Answer

I think it is 9 x 3.14

myabell · Answer

or 9 divides 3.14

Extrinix · Answer

$2\pi r^2$ or $\pi d$

So you would be correct yeah.

Extrinix · Answer

So what would the answer of $2\pi (4.5)^2$ or $\pi (9)$ be?

Extrinix · Answer

Correction* $2\pi r$.

(Copy and paste be like.)